#include <iostream>
using namespace std;
int main() {
	int a =111, b=222;
	int c[20];
	int d = 333;
	for(int i = 0; i<20; i++){
		c[i]=i;
	}
	
	cout<<c[9]<<endl;
	cout<<c[10]<<endl;
	cout<<c[21]<<endl;
	
	cout << "address: " <<endl;
	cout << "a:" << &a <<endl;
	cout << "b:" << &b <<endl;
	cout << "c:" << &c <<endl;
	cout << "c[0]:" << &c[0] <<endl;
	cout << "c[1]:" << &c[1] <<endl;
	cout << "c[9]:" << &c[9] <<endl;
	
	cout << "d:" << &d <<endl;
	
	return 0;
}
